<!DOCTYPE html>
<!--suppress ALL -->
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>字符串</title>
    <script>
        let a = "最近天气很差";

        let b = `java

        真
        难
        学

        `

        console.log(a.includes("最近"));
        console.log(a.startsWith("j"))
        console.log(a.endsWith("差"))
        console.log(a);
        console.log(b);
    </script>
</head>
<body>

</body>
</html>